var createError = require('http-errors');
var express = require('express');
// 引入处理跨域中间件 
var cors = require('cors');

var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
const swaggerInstall = require('./utils/swagger');
var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var loginRouter = require("./routes/login");
// 引入产品路由 
var productRouter = require('./routes/product');
// 引入顾客路由 
// 引入菜单路由 
var menuRouter = require('./routes/menus');
var customerRouter = require('./routes/customer');
var employeeRouter = require('./routes/employee');
var cloumnRouter = require('./routes/cloumn');
var rizhiRouter = require('./routes/rizhi');
var websiteRouter = require('./routes/website');


var app = express();


swaggerInstall(app);
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
// 使用中间件 
app.use(cors());
// 使用路由单元
app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/user',loginRouter);
// 使用产品路由
app.use('/product',productRouter);
// 使用菜单路由
app.use('/menus',menuRouter);
app.use('/customer',customerRouter);
app.use('/employee',employeeRouter);
app.use('/cloumn',cloumnRouter);
app.use('/rizhi',rizhiRouter);
app.use('/website',websiteRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
